EP 0164203 A2 19851211 - Television apparatus with vertical detail enhancement.
Title (en)
Television apparatus with vertical detail enhancement.
Title (de)
Fernsehgerät mit Vertikalauflösung.
Title (fr)
Récepteur de télévision de détail vertical.
Publication
Application
Priority
US 60712184 A 19840503
Abstract (en)
A television receiver displays the picture information of an interlaced signal, such as a baseband NTSC signal, in a non-interlaced scanning format. The NTSC signal (130) is comb filtered in a line comb filter (15) to extract a luminance representative component signal (Yi). When no motion occurs in the picture scene, vertical detail (Yd) is added (33) and subtracted (39), respectively, from the luminance representative signal (Yi) to form first (Yb) and second (Ya) enhanced luminance signals, respectively. The first and second signals are time compressed (23) so that during each horizontal line interval (1H) of the baseband NTSC signal (130), both of the corresponding time compressed (Y2H) first and second signals can be displayed (43, 51) as consecutive non-interlaced scan lines, respectively, of the display (51). When motion is detected (37), vertical detail enhancement is diminished (41, 35) so that artifacts which may be more pronounced in the presence of motion, become less visible.
IPC 1-7
IPC 8 full level
H04N 5/14 (2006.01); H04N 7/00 (2006.01); H04N 7/015 (2006.01); H04N 9/64 (2006.01); H04N 9/78 (2006.01); H04N 11/02 (2006.01); H04N 11/20 (2006.01)
CPC (source: EP US)
H04N 5/144 (2013.01 - EP US); H04N 9/646 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0164203 A2 19851211; EP 0164203 A3 19860102; EP 0164203 B1 19920108; DE 3585105 D1 19920220; HK 9897 A 19970131; JP H0832074 B2 19960327; JP S60245384 A 19851205; US 4612567 A 19860916
DOCDB simple family (application)
EP 85302899 A 19850425; DE 3585105 T 19850425; HK 9897 A 19970123; JP 9531285 A 19850502; US 60712184 A 19840503